Feds down to last 3 witnesses in Bonds case

San Francisco Giants fan Thomas Peterson holds a baseball that Barry Bonds signed as he left federal court Wednesday, April 13, 2011, in San Francisco. A federal jury convicted Bonds of a single charge of obstruction of justice Wednesday but failed to reach a verdict on the three counts at the heart of allegations that he knowingly used steroids and human growth hormone and lied to a grand jury about it. (AP Photo/Noah Berger)